Basic
$267 – $623 each
Lead-free brass pressure-reducing valve with single union, isolation valve checked, set to about 50-60 psi and pressure tested

Supply and install/replace a 3/4-1 in. residential water pressure-reducing valve on the main line, including plumber labor and pressure test.
Install Pressure Regulator Valve in Washington, District of Columbia typically costs $314 to $733 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Washington are 5.0% higher than the national average for install pressure regulator valve.
National average: $300 – $700 each
$267 – $623 each
Lead-free brass pressure-reducing valve with single union, isolation valve checked, set to about 50-60 psi and pressure tested
$314 – $733 each
Lead-free brass pressure-reducing valve with double unions and built-in strainer, gauge port, set to about 50-60 psi, leak tested
$392 – $916 each
Lead-free brass pressure-reducing valve with double unions, strainer and installed pressure gauge, set, leak tested, expansion checked
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $139 – $331 | each |
| Labor | labor | $112 – $255 | each |
| Supplies & Other | supplies | $38 – $88 | each |
| Equipment & Disposal | equipment | $25 – $59 | each |
Brass water pressure reducing valve with adjusting cap and pressure scale
Photo: Raimond Spekking · CC BY-SA 4.0 · Source
Find a pro to do thisWater pressure reducing valve taken apart showing body, spring and piston
Photo: Raimond Spekking · CC BY-SA 4.0 · Source
Find a pro to do thisConnect with local install pressure regulator valve contractors in Washington for personalized quotes based on your specific project.